Amazon — Gift card purchased from Amazon not working

Website:

www.amazon.in/Nykaa-2_model-eGift-Card/dp/B07BTN7LD8/ref=sr_1_1?keywords=nykaa+gift+cards&qid=1660049568&sr=8-1

I had purchased Nykaa gift card worth of 1000 Rs at Amazon on 31st July 2022 and order no at Amazon[protected] and iam unable to redeem the gift card at Nykaa stores and iam getting invalid gift card error and i spoke to Nykaa and they replied that they dont sell gift card at amazon and i contacted Amazon multiple times and all they say they are not able to help and they cannot cancel the gift card. I have attached order confirmation from Amazon and error iam getting at Nykaa and Nykaa customer care response .This gift card is still sold at Amazon which i believe is fake and not working .After calling customer care multiple times and failing for resolution iam writing this to consumer form. Kindly help